likewise for ~/.cache ($XDG_CACHE_HOME). does wxWindows provide a cross platform abstraction for the cache dir, too?
Who do they think defined this standard, if not the people who had "been around even longer".
IIRC KDE was first with cleaning up the clutter by hiding things in ~/.kde or something like that, but there's a ton of config/bookmarks/menus/data/caches you want to everything to use, so it was a given that there would be some standardization.